Similar to the Bitcoin Node Speed Test, this is a quick quantitative look at
how the Electrum server software handles under load. The Electrum wallet is
extremely popular, and the distributed servers which power it are all hosted by
volunteers without budget. The server requires a fully indexed Bitcoin Core
daemon running, and produces sizable external index in order to allow SPV
clients to quickly retrieve their history.
3.9G electrum/utxo
67M electrum/undo
19G electrum/hist
1.4G electrum/addr
24G electrum/
Based on my own logs produced by the electrum-server console, it takes this
server (Xeon, lots of memory, 7200 RPM RAID) approximately 3.7 minutes per
megabyte of block to process into the index. This seems to hold true through
the 10 or so blocks I have in my scroll buffer, the contents of blocks seem to
be of approximately the same processing load. Continuing this trend with the
current inter-block time of 9.8 minutes, an electrum-server instance running on
modest-high end dedicated server is able to support up to 2.64 MB block sizes
before permanently falling behind the chain.
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